/* ============================================================
 * bootstrap-button.js v2.0.0
 * http://twitter.github.com/bootstrap/javascript.html#buttons
 * ============================================================
 * Copyright 2012 Twitter, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============================================================ */

!function ($) {

    "use strict"

    /* BUTTON PUBLIC CLASS DEFINITION
     * ============================== */

    var Button = function (element, options) {
        this.$element = $(element)
        this.options = $.extend({}, $.fn.button.defaults, options)
    }

    Button.prototype = {

        constructor: Button

        , setState: function (state) {
            var d = 'disabled'
                , $el = this.$element
                , data = $el.data()
                , val = $el.is('input') ? 'val' : 'html'

            state = state + 'Text'
            data.resetText || $el.data('resetText', $el[val]())

            $el[val](data[state] || this.options[state])

            // push to event loop to allow forms to submit
            setTimeout(function () {
                state == 'loadingText' ?
                    $el.addClass(d).attr(d, d) :
                    $el.removeClass(d).removeAttr(d)
            }, 0)
        }

        , toggle: function () {
            var $parent = this.$element.parent('[data-toggle="buttons-radio"]')

            $parent && $parent
                .find('.active')
                .removeClass('active')

            this.$element.toggleClass('active')
        }

    }


    /* BUTTON PLUGIN DEFINITION
     * ======================== */

    $.fn.button = function (option) {
        return this.each(function () {
            var $this = $(this)
                , data = $this.data('button')
                , options = typeof option == 'object' && option
            if (!data) $this.data('button', (data = new Button(this, options)))
            if (option == 'toggle') data.toggle()
            else if (option) data.setState(option)
        })
    }

    $.fn.button.defaults = {
        loadingText: 'loading...'
    }

    $.fn.button.Constructor = Button


    /* BUTTON DATA-API
     * =============== */

    $(function () {
        $('body').on('click.button.data-api', '[data-toggle^=button]', function (e) {
            $(e.target).button('toggle')
        })
    })

}(window.jQuery)
